A method for superimposing one image on another image, a method for making a data medium dedicated to a certain person using the image superimposing method, and a data medium for which personalization has been performed

摘要

A method of superimposing a first image onto a second image, wherein each image is defined by a plurality of pixels is disclosed. The method includes changing target pixels of the second image corresponding in position to pixels of the first image to be superimposed on the second image. Changing target pixels of the second image includes changing the values of some of these target pixels of the second image to respective new values. Each new value is based on the original value of at least one pixel of the second image. A personalization method including such an image superimposing method and a data carrier thereby personalized are also disclosed.